Home / 139,270.25-192,192.41-75,608.03

Finding the Fourth Proportional to 139,270.25, 192,192.41 and 75,608.03

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Solution

The fourth proportional to 139,270.25, 192,192.41 and 75,608.03 is: 104,338.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,270.25 : 192,192.41 = 75,608.03 : x
  2. Step 2: Convert to fraction form
    139,270.25/192,192.41 = 75,608.03/x
  3. Step 3: Cross multiply
    139,270.25x = 192,192.41 × 75,608.03
  4. Step 4: Simplify right side
    139,270.25x = 14,531,290,170.55
  5. Step 5: Solve for x
    x = 14,531,290,170.55/139,270.25
  6. Step 6: Final answer
    x = 104,338.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.